Gas stove

ABSTRACT

A gas stove, including: a stove body, a range hood, a closed stove, and an exhaust system. The closed stove is disposed in the stove body. The closed stove includes a heat conduction panel, a burner, and a thermal insulation and guide device. The thermal insulation and guide device is disposed around the burner. The heat conduction panel is disposed on the top of the thermal insulation and guide device, and a combustion chamber is formed therebetween. The range hood is disposed on the stove body. The range hood includes a fume absorption inlet for receiving oil fumes formed in the process of food cooking. The stove body includes a fume release channel. The fume release channel communicates with the fume absorption inlet. The thermal insulation and guide device includes a smoke outlet for discharging hot smoke in the combustion chamber.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation-in-part of International Patent Application No. PCT/CN2021/071960 with an international filing date of Jan. 15, 2021 and of International Patent Application No. PCT/CN2021/071961 with an international filing date of Jan. 15, 2021, designating the United States, now pending, and further claims foreign priority benefits to Chinese Patent Application No. 202010049709.6 filed Jan. 16, 2020, to Chinese Patent Application No. 202010049704.3 filed Jan. 16, 2020, and to Chinese Patent Application No. 202010049703.9 filed Jan. 16, 2020. The contents of all of the aforementioned applications, including any intervening amendments thereto, are incorporated herein by reference. Inquiries from the public to applicants or assignees concerning this document or the related applications should be directed to: Matthias Scholl P.C., Attn.: Dr. Matthias Scholl Esq., 245 First Street, 18th Floor, Cambridge, Mass. 02142.

BACKGROUND

The disclosure relates to kitchen equipment, and more particularly to a gas stove.

Conventionally, the gas stoves include an external pot support and adopt an external combustion mode, which are unsightly in appearance, inconvenient to use, difficult to clean, and have a low heat efficiency. In addition, the pot support is unstable on the gas stoves and occupies much space. In recent years, integrated stoves have been developed. However, the burning is an open mode, and the pot support is externally disposed. The oil fumes are not purified and are directly discharged to the air, which is environmentally unfriendly.

Existing non-open gas stoves without pot supports include a heat conduction panel above the burner, and the hot flue gas generated by the combustion is directly diffused into the air, which leads to many defects. For example, the heat conduction efficiency of the heat conduction panel is low, the temperature rise of the cooker is slow, and the directional thermal conduction to the cooker cannot be realized, resulting in unnecessary high temperatures in surrounding areas of the cooker, which leads to a serious decline in thermal efficiency, and may burn or scald operators and destroy food materials or instruments.

SUMMARY

In one aspect, the disclosure provides a gas stove, comprising: a stove body, a range hood, a closed stove, and an exhaust system. The closed stove is disposed in the stove body; the closed stove comprises a heat conduction panel, a burner, and a thermal insulation and guide device; the thermal insulation and guide device is disposed around the burner; the heat conduction panel is disposed on a top of the thermal insulation and guide device, and a combustion chamber is formed therebetween; a combustion layer produced by the burner is in the combustion chamber.

The range hood is disposed on the stove body; the range hood comprises a fume absorption inlet for receiving oil fumes formed in the process of food cooking; the stove body comprises a fume release channel; the fume release channel communicates with the fume absorption inlet; the thermal insulation and guide device comprises a smoke outlet for discharging hot smoke in the combustion chamber; the stove body further comprises a hot smoke release channel; the hot smoke release channel communicates with the smoke outlet; and the exhaust system communicates with the fume release channel and the hot smoke release channel, so that, when the exhaust system operates, the oil fumes are absorbed into the fume absorption inlet and the hot smoke in the combustion chamber is absorbed into the smoke outlet.

In another aspect, the disclosure further provides a gas stove comprising: a stove body, a heat conduction panel, a burner, a bottom wall, an annular side wall, and a blocking and diversion member. The heat conduction panel is disposed on the burner; the bottom wall and the annular side wall are at least one-layered; the bottom wall is disposed outside the burner and faces the heat conduction panel, so that hot smoke produced by the burner is diffused through a gap between the heat conduction panel and the bottom wall; a top end of the annular side wall abuts against the heat conduction panel, a bottom end of the annular side wall abuts against the bottom wall.

The blocking and diversion member is disposed in the gap to block and divert the hot smoke diffusing to the blocking and diversion member; a smoke outlet is disposed on the bottom wall and/or the annular side wall around the blocking and diversion member; a fume discharge passage is disposed between the blocking and diversion member and the annual side wall, to guide the hot smoke blocked and diverted by the blocking and diversion member to the smoke outlet; the stove body, the heat conduction panel, the burner, the bottom wall, and the annular side wall are disposed on the stove body; and the bottom wall is integrated with the annular side wall.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a front view of a gas stove in Example 1;

FIG. 2 is an exploded view of a gas stove in Example 1;

FIG. 3 is a sectional view of a gas stove in Example 1;

FIG. 4 is an exploded view of a range hood of a gas stove in Example 1;

FIG. 5 is a local sectional view of a gas stove in Example 1;

FIG. 6 is a local front view of a gas stove in Example 1;

FIG. 7 is another local sectional view of a gas stove in Example 1;

FIG. 8 is a schematic diagram of a first blocking and diversion member in Example 1;

FIG. 9 is a schematic diagram of a second blocking and diversion member in Example 1;

FIG. 10 is another schematic diagram of a second blocking and diversion member in Example 1;

FIG. 11 is a schematic diagram of a third blocking and diversion member in Example 1;

FIG. 12 is a front view of a gas stove in Example 2;

FIG. 13 is local sectional view of a gas stove in Example 2;

FIG. 14 is a front view of a gas stove in Example 3;

FIG. 15 is a local sectional view of a gas stove in Example 3;

FIG. 16 is a sectional view of a gas stove in Example 4;

FIG. 17 is a front view of a gas stove in Example 5;

FIG. 18 is a local sectional view of a gas stove in Example 5;

FIG. 19 is a front view of a gas stove in Example 6;

FIG. 20 is a front view of a gas stove in Example 7;

FIG. 21 is an air circulation diagram of a gas stove in Example 8;

FIG. 22 is a front view of a gas stove in Example 9;

FIG. 23 is a schematic diagram of a transmission mechanism in Example 10;

FIG. 24 is a front view of a gas stove in Example 11;

FIG. 25 is a front view of a gas stove in Example 12;

FIG. 26 is a front view of a gas stove in Example 13;

FIG. 27 is a front view of a gas stove in Example 14;

FIG. 28 is a local sectional view of a gas stove in Example 14;

FIG. 29 is an exploded view of a gas stove in Example 14;

FIG. 30 is a first local sectional view of a gas stove in Example 14;

FIG. 31 is a first local sectional view of a gas stove in Example 14;

FIG. 32 is a second local sectional view of a gas stove in Example 14;

FIG. 33 is a third local sectional view of a gas stove in Example 14;

FIG. 34 is a top view of a fin-type blocking and diversion ring in Example 14;

FIG. 35 is a bottom view of a fin-type blocking and diversion ring in Example 14;

FIG. 36 is an air circulation diagram of a gas stove in Example 15;

FIG. 37 is an exploded view of a gas stove in Example 15;

FIG. 38 is an air circulation diagram of a gas stove in Example 16;

FIG. 39 is a front view of a belt-type blocking and diversion ring in Example 17;

FIG. 40 is a front view of a belt-type blocking and diversion ring in Example 18;

FIG. 41 is a local exploded view of a gas stove in Example 19;

FIG. 42 is a local sectional view of a gas stove in Example 20;

FIG. 43 is a front view of a gas stove in Example 20.

DETAILED DESCRIPTION

To further illustrate the disclosure, embodiments detailing a gas stove are described below. It should be noted that the following embodiments are intended to describe and not to limit the disclosure.

Example 1

As shown in FIGS. 1-11, a gas stove comprises a stove body 1, a range hood, a closed stove, and an exhaust system. The closed stove is disposed in the stove body 1 and comprises a heat conduction panel 2, a burner 15, and a thermal insulation and guide device 13; the thermal insulation and guide device 13 sleeves the burner 15; the heat conduction panel 2 is disposed on a top part of the thermal insulation and guide device 13, and a combustion chamber is formed therebetween; and the burner 15 comprises a combustion layer that is heat-resistant and disposed in the combustion chamber. The range hood is disposed on the stove body 1 and comprises a fume absorption inlet 11 for receiving oil fumes formed in the process of food cooking; the stove body 1 comprises a fume release channel 221 connected to the fume absorption inlet 11; the thermal insulation and guide device 13 comprises a smoke outlet 19 for discharging the hot smoke in the combustion chamber; the stove body 1 further comprises a hot smoke release channel 21 communicating with the smoke outlet 19. The exhaust system is disposed in the stove body 1 and communicates with both the fume release channel 221 and the hot smoke release channel 21, to capture the grease or fume through the fume absorption inlet 11 and to remove the hot smoke 23 from the combustion chamber. Preferably, when the exhaust system operates, the negative air pressure is formed at the fume absorption inlet 11 and the smoke outlet 19. In certain examples, the stove body 1 further comprises an exhaust pipe 33 connected to an air blower 4, so that an airflow produced by the air blower 4 is discharged into the exhaust pipe 33.

The burner 15 introduces gas, mixes it with air, and burns the gas mixture, to convert chemical energy into thermal energy. Preferably, the burner 15 further comprises a gas inlet pipe, an air inlet pipe, a mixing chamber, and a combustion layer; more preferably, the combustion layer comprises a metal/ceramic porous carrier; the gas and air are mixed in the mixing chamber, burned on the surface of the metal/ceramic porous carrier that emits the heat energy as infrared radiation.

The heat conduction panel 2 is used to transmit the infrared heat energy emitted by the burner 15. In a preferred embodiment of the disclosure, the heat conduction panel 2 is a directional heat conduction panel; understandably, the infrared heat energy is diffused from the interior of the heat conduction panel 2 instead of conducting along the direction it extends. When the gas stove works, the infrared heat energy is transmitted to only a side area of the heat conduction panel 2 that is above the burner 15; and thus, the side area is a high-temperature area, but the other area remain at ambient temperature. Compared with the prior art gas stoves, the disclosed concentrates heat at an area above the burner to improve the heating efficiency and prevent the other area from overheating, thus preventing scalds; and the other area can be used for any other purpose. Preferably, the heat conduction panel 2 is a heat conduction microcrystalline panel that conducts heat in one direction. In a preferred embodiment of the disclosure, the stove body 1 comprises a top part comprising a casing or panel that comprises an opening for communicating with the heat conduction panel 2. The top part of the stove body 1 is thermally non-conductive; or the top part of the stove body 1 is heat conduction, a thermally non-conductive material is disposed between the heat conduction panel 2 and the top part of the stove body 1.

The directional heat conduction panel 2 conducts heat from an interior panel surface to a cookware above the directional heat conduction panel 2; and thermal insulation is achieved in the direction that the directional heat conduction panel 2 extends. In a preferred embodiment of the disclosure, the heat conduction panel 2 is a directional heat conduction microcrystalline panel. In a preferred embodiment of the disclosure, the heat conduction panel 2 comprises a directional heat conduction material; in a preferred embodiment of the disclosure, the heat conduction panel 2 comprises a plurality of the directional heat conduction microcrystalline panels that are stacked in layers. In a preferred embodiment of the disclosure, the heat conduction panel 2 comprises at least one directional heat conduction microcrystalline panel and a metal sheet, both of which are stacked in layers.

In the example, the thermal insulation and guide device 13 comprises a bottom wall and an annular side wall; the bottom wall is disposed around the burner 15 and faces the heat conduction panel 2, so that the hot smoke 23 produced by the burner 15 is diffused through a gap between the bottom wall and the burner 15; the annular side wall comprises a top portion and a bottom portion; the top portion is connected to the heat conduction panel 2; and the bottom portion is connected to the bottom wall. Preferably, the bottom wall is formed integrally with the annular side wall. In the example, the thermal insulation and guide device 13 comprises a plurality of annular side walls disposed on the bottom wall, to prevent leakage of the hot smoke. In the example, the thermal insulation and guide device 13 comprises a plurality of bottom walls disposed around the burner 15 to prevent the heat energy from diffusing through from the gap between the bottom wall and the burner 15.

In the example, at least one of the bottom wall and the annular side wall has a thermal insulating property; in a first example, the bottom wall and/or the annular side wall comprises a thermal-insulating material; In a second example, the bottom wall and/or the annular side wall comprises a mixed structure comprising at least one of vacuum layer; in a third example, the bottom wall comprises a mixed structure comprising a thermal-insulating material and a vacuum layer; and in a third example, the annular side wall comprises mixed structure comprising a thermal-insulating material and a vacuum layer. In certain examples, the bottom wall comprises a mixed structure that comprises at least two of a metal layer 1322, a vacuum layer 1321, and a thermal-insulating layer 1323. In certain examples, the annular side wall comprises a mixed structure that comprises at least two of a metal layer 1311, a vacuum layer 1313, and a thermal-insulating layer 1312.

Preferably, the bottom wall further comprises a center part comprising a mounting hole through which the burner 15 is disposed on the bottom wall; and a protective ring 57 is disposed on the mounting hole.

Preferably, a protective shell 60 is disposed on the bottom wall and the annular side wall.

In the example, the closed stove further comprises a blocking and diversion member 14 disposed in the combustion chamber and around the combustion layer of the burner 15, so as to block and divert the flow of the hot smoke diffusing to the blocking and diversion member 14; the smoke outlet 19 is disposed around the blocking flow-dividing assembly 14; the fume release channel 221 is disposed between the blocking and diversion member 14 and the inner surface of the thermal insulation and guide device 13 so as to direct the diverted hot smoke to the smoke outlet 19;

In a preferred embodiment of the disclosure, the blocking and diversion member 14 comprises a blocking and diversion ring disposed between the smoke outlet 19 and the burner 15. The blocking and diversion ring is a complete ring or a notched ring disposed around the burner 15; the blocking and diversion ring comprises a plurality of air guide channels 62 through which the diverted hot smoke is directed to the fume release channel 221.

In a preferred embodiment of the disclosure, the blocking and diversion member 14 comprises a plurality of blocking and diversion rings disposed between the burner 15 and the smoke outlet 19. The hot smoke is blocked by the plurality of blocking and diversion rings, and a turbulence occurs due to formation of swirls and eddies. Thus, the hot smoke maintains contact with the heat conduction panel and/or the blocking and diversion member to transfer heat energy as much as possible, thus improving the heating efficiency.

In a first preferred example, the blocking and diversion ring comprises a belt-type blocking and diversion ring that is a complete ring or a notched ring; the belt-type blocking and diversion ring comprises a plurality of through holes 310; the hot smoke is diverted by the belt-type blocking and diversion ring to form the turbulence; the diverted hot smoke flows through the plurality of through holes 310, the fume release channel 221 and the smoke outlet 19 successively, and is then discharged into the hot smoke release channel 21.

In a second preferred example, the blocking and diversion ring comprises a fin-type blocking and diversion ring 56 comprising a plurality of fins 61. Each of the plurality of fins is disposed annually; an air guide channel 62 is disposed between every two adjacent fins to block the hot smoke, thus resulting in the turbulence; and the plurality of air guide channels 62 diverts the blocked hot smoke and directs it to the hot smoke release channel.

Preferably, the surface of each of the plurality of fins comprises a protrusion and groove.

Preferably, each of the plurality of fins comprises a plurality of teeth.

In the example, the fin-type blocking and diversion ring 56 further comprises one or more connection parts 63 connected to the plurality of fins. Preferably, the one or more connecting parts 63 are one or more annular connection part 63 each in the form of a complete ring or a notched ring; each of the plurality of fins is spaced evenly on the annular connection part 63 to form the fin-type blocking and diversion ring 56.

In a third preferred example, the blocking and diversion ring comprises a folding-belt-type blocking and diversion ring 29; gaps 292 between every two adjacent ripples 291 of the folded belt to function as the plurality of air guide channels; the hot smoke is blocked by the folded belt to form the turbulence; the plurality of air guide channels 62 diverts the blocked hot smoke and directs it to the hot smoke release channel.

The term “blocking and diversion member 14” as used herein refers to only one blocking and diversion ring selected from the belt-type blocking and diversion ring, the fin-type blocking and diversion ring, or the folding-belt-type blocking and diversion ring.

The term “a plurality of blocking and diversion rings” as used herein refers to multiple blocking and diversion rings spaced evenly outward from the center of the burner 15; and the blocking and diversion rings are, but not limited to the belt-type blocking and diversion ring, the fin-type blocking and diversion ring, or the folding-belt-type blocking and diversion ring.

Preferably, the blocking and diversion ring is thermally non-conductive. For example, the plurality of fins 61 comprises a thermally non-conductive material. Preferably, the one or more connection parts 63 are one or more heat conduction connection parts 63. Both the plurality of fins 61 and the one or more connecting parts 63 comprise a metal material, so that the fin-type blocking and diversion ring 56 absorbs the heat from the hot smoke and radiates the infrared heat energy, thus increasing the intensity of infrared radiation above the heat conduction panel 2.

Preferably, the blocking and diversion ring further comprises a top portion connected to the heat conduction panel 2. Therefore, the blocking and diversion ring conducts heat more efficiently to the heat conduction panel 2, increasing the intensity of infrared radiation above the heat conduction panel 2.

Preferably, the thermal insulation and guide device 13 further comprises a spring abutting against on the heat conduction panel 2 and the top portion of the blocking and diversion ring.

Preferably, a spring is disposed between the thermal insulation and guide device 13 and the heat conduction panel 2 to abut against the thermal insulation and guide device 13 and the heat conduction panel 2.

The exhaust system comprises the air blower 4 and a mixed channel 36; the mixed channel comprises an air inlet that communicates with the hot smoke release channel and the fume release channel; the air blower is connected to the mixed channel; when the air blower operates, the negative air pressure is formed at the fume absorption inlet 11 and the smoke outlet 19.

The smoke outlet 19 is disposed on the thermal insulation and guide device 13 to discharge the hot smoke in the combustion chamber. The smoke outlet 19 is connected to fume release channel 221 through the hot smoke release channel 21; the air blower 4 is disposed in the fume release channel 221; the negative air pressure is formed at the fume absorption inlets 11, 20 to absorb the fume; and the negative air pressure is also formed at the smoke outlet 19 to force the hot smoke to flow upward into the fume release channel 221.

As shown in FIG. 4, a range hood comprises a fume absorption box that comprises a belt-type fume filter 312 and an air inlet chamber 316; the belt-type fume filter 312 is disposed in the fume absorption box to cover the air inlet chamber 316; the belt-type fume filter 312 is movable from one end of the air inlet chamber 316 to another manually or automatically under the drive of a driving mechanism, so that a used part of the belt-type fume filter leaves the air inlet chamber and an unused part moves synchronously to the air inlet chamber. The fume absorption box comprises a body 314 and a cover 311; the cover 311 comprises a plurality of fume absorption inlet 11; the fume absorption box comprises a plurality of chambers separated from each other; the plurality of chambers comprises main chamber disposed in the middle of the body 314 and functioning as the air inlet chamber 316.

Preferably, the unused part of the belt-type fume filter 312 comprises a rolling or folding structure;

preferably, the fume absorption box further comprises a rotation shaft 315 on which the used part of the belt-type fume filter 312 is wound;

preferably, the fume absorption box further comprises a manual transmission mechanism for controlling the operation of the rotation shaft 315; and preferably, the manual transmission mechanism comprises a handle; one end of the handle is connected to the rotation shaft 315, and the other end of the handle is exposed outside the fume absorption box;

preferably, the driving mechanism comprises a driving motor, and the driving motor is directly connected to the rotation shaft 315 or connected to the rotation shaft 315 through the manual transmission mechanism;

preferably, the rotation shaft 315 comprises a surface that comprises a plurality of protrusions for contacting the belt-type fume filter 312.

Preferably, the fume absorption box further comprises a honeycomb porous filter disposed in the air inlet chamber 316 and under the belt-type fume filter 312.

In the example, the belt-type fume filter 312 is driven manually or automatically to move from one side to the other side in the air inlet chamber 316; as a used part of the belt-type fume filter 312 leaves the air inlet chamber 316, an unused part of the belt-type fume filter 312 moves synchronously to the air inlet channel 316 synchronously. After a period of adsorption, oil fume adheres to the belt-type fume filter 312, causing a decrease in the adsorption capacity of the belt-type fume filter 312; the used part of the belt-type fume filter 312 is leaves the air inlet chamber 316, and an unused part of the belt-type fume filter 312 moves synchronously to the air inlet channel 316 synchronously to absorb the oil fume more efficiently in comparison with the prior art.

In the disclosure, the gas stove further comprises a control system 6 for controlling the operation of the burner 15, and opening, closing, and/or operation of the air blower 4; preferably, the control system comprises:

a command acquisition unit, controlled by a button, a knob, a touch screen, and a voice;

a main control unit for receiving and parsing a command sent by the user and then sending a corresponding execution command to the burner 15 and the air blower 4;

preferably, the control system 6 further comprises a display unit for displaying a user command and/or a working state of the burner 15 and the air blower 4;

preferably, the control system 6 further comprises an Internet of Things module for interacting with a household equipment except for the main control unit and/or the gas stove;

preferably, the control system 6 further comprises a face recognition system and/or a fingerprint recognition system for verifying whether a user is qualified to operate the gas stove; preferably, the control system 6 further comprises a display 5; and more preferably, the display 5 comprises a cross-screen interconnection screen and a split-screen display system.

preferably, the control system 6 further comprises a sensor for detecting whether there is a cookware on the heat conduction panel 2 and/or whether the cookware is boiled dry, and sends a detection signal to the control system. Preferably, the control system 6 further comprises an electric valve for closing or opening the gas pipe of the burner in response to the command sent by the control system.

Preferably, the sensor comprises a temperature sensor for the temperature of the heat conduction panel 2; the control system determined whether there is a cookware on the heat conduction panel 2 and/or whether the cookware is boiled dry.

Preferably, the control system 6 further comprises an electronic ignition system, a gas control valve, and a flameout protection system.

Example 2

A second example of the gas stove is illustrated, and it is similar to Example 1, except for the following specific differences:

As shown in FIGS. 12 and 13, the range hood comprises one or more fume absorption boxes spaced evenly on the stove body; the fume absorption box is detachably connected to the fume release channel.

In a preferred embodiment of the disclosure, the fume absorption box comprises at least one layer of fume barrier 317, at least one layer of disposable fume purification and separation device 318, and at least one layer of support mesh 319, all of which are stacked in turn or detachably connected to each other; the at least one layer of fume barrier 317 comprises the plurality of fume absorption inlet 11; the oil fumes are absorbed by the plurality of fume absorption inlet 11, purified by the at least one layer of disposable fume purification and separation device 318, passed through the at least one layer of support mesh 319, and discharged into the fume release channel.

Preferably, the at least one layer of disposable fume purification and separation device 318 comprises a sheet-like structure. In a first preferred example, the sheet-like structure comprises an organic material, an inorganic material, or a combination thereof. In a second preferred example, the sheet-like structure comprises a non-woven fibrous paper web or a non-woven fibrous cloth web. In a third preferred example, the sheet-like structure comprises a non-woven metal fiber bond or a non-woven metal fiber mesh. In a fourth preferred example, the sheet-like structure comprises a woven paper mesh or a woven cloth mesh.

The gas stove comprises other features as understood in Example 1 and hence are not described in greater detail herein.

Example 3

A third example of the gas stove is illustrated, and it is similar to Example 1, except for the following specific differences:

As shown in FIGS. 14 and 15, in the example, the range hood comprises at least one fume adsorption arm 31; the upper part of the at least one fume adsorption arm 31 communicates with the fume absorption inlet 11; the lower part of the at least one fume adsorption arm 31 comprises an outlet end connected to the fume release channel.

In the example, the range hood further comprises at least one receiving device 90 corresponding to the at least one fume adsorption arm 31; the outlet end is flexibly or detachably connected to the at least one receiving device 90; and the at least one receiving device 90 is air permeable and connected to the fume release channel. The at least one receiving device 90 is configured to allow the air to pass through; for example, the at least one receiving device 90 comprises a plurality of through holes or the at least one layer of support mesh 319.

In the example, the fume absorption box further comprises the at least one layer of disposable fume purification and separation device 318 detachably disposed between the outlet end and the at least one receiving device 90; and the disposable fume purification and separation device is a one-layered or multiple-layered structure.

In the example, an arc-shaped part is disposed between the at least one fume adsorption arm 31 and the at least one receiving device 90; specifically, one side of the arc-shaped part that faces toward the at least one fume adsorption arm 31 is convex; the other side of the arc-shaped part that faces toward the at least one receiving device 90 is concave; the convex side is matched to the concave side so that the at least one fume adsorption arm 31 is rotated with respect to the at least one receiving device 90. When in use, the at least one fume adsorption arm 31 is rotated by an angle to absorb the oil fume more efficiently.

In the example, the arc-shaped part comprises a magnetic part, such as a magnet, used to locate the at least one fume adsorption arm 31.

The gas stove comprises other features as understood in Example 1 and hence are not described in greater detail herein.

Example 4

A fourth example of the gas stove is illustrated, and it is similar to Example 1, except for the following specific differences:

As shown in FIG. 16, in the example, the belt-type fume filter 312 is in the shape of an annulus, the fume absorption box 313 further comprises a driving mechanism, a driving pulley 321 and a driven pulley 322; the belt-type fume filter 312 is wrapped around the driving pulley 321 and the driven pulley 322; the driving mechanism is powered which causes the driving pulley 321 to rotate; preferably, the driving mechanism comprises a driving motor that is directly connected to the driving pulley 321 or connected to the driving pulley 321 through the manual transmission mechanism.

In the example, the fume absorption box 313 further comprises a cleaning device 324, such as a water tank, used to clean the belt-type fume filter 312. Preferably, the water tank is connected to a water refreshing pipe 325.

Preferably, the driving pulley 321 and/or the driven pulley 322 comprises a surface that comprises a plurality of protrusions for contacting the belt-type fume filter 312.

Preferably, the fume absorption box 313 further comprises two auxiliary wheels 323 and 326, both of which are used to keep a part of the belt-type fume filter 312 in the water tank.

After a period of adsorption, oil fume adheres to the belt-type fume filter 312, causing a decrease in the adsorption capacity of the belt-type fume filter 312; the used part of the belt-type fume filter 312 leaves the air inlet chamber 316, and an unused part of the belt-type fume filter 312 moves synchronously to the air inlet channel 316 synchronously to absorb the oil fume more efficiently. Further, the belt-type fume filter 312 is easy to clean for recycling, which lowers costs and reduces maintenance effort.

The gas stove comprises other features as understood in Example 1 and hence are not described in greater detail herein.

Example 5

A fifth example of the gas stove is illustrated, and it is similar to Example 1, except for the following specific differences:

As shown in FIGS. 17, 18 and 26, in the example, the range hood comprises a vertical arm 3 extends upward with respect to the heat conduction panel 2; the fume absorption inlet is disposed on the vertical arm above the stove body; the fume release channel 221 extends from the stove body 1 to the vertical arm 3, and communicates with the fume absorption inlet 11. The exhaust system comprises the air blower disposed on the vertical arm 3; the air blower is disposed in the fume release channel 221, so that the negative pressure is formed in the fume absorption inlet 11 and the smoke outlet 19, and the oil fume and the hot smoke are absorbed into the fume release channel 221.

In the example, the fume release channel 221 comprises a fume filter assembly disposed in a part of the fume release channel 221 that is passed through the vertical arm 3.

In a preferred example, the fume filter assembly comprises a disposable filtering material, preferably, a lamellar disposable filtering material;

in a preferred example, the fume filter assembly comprises a belt filter unit which is a rolling or folding structure; and

in a preferred example, the fume filter assembly comprises a filter plate detachably disposed in the fume release channel.

In the example, the vertical arm 3 is disposed on the stove body 1 and extends upward with respect to the heat conduction panel 2; the fume release channel 221 extends from the vertical arm 3 to the stove body 1, and communicates with the hot smoke release channel 21; the fume absorption inlet 11 is disposed in the lower part of the vertical arm 3; the upper part of the vertical arm 3 protrudes forward relative to the lower part of the vertical arm 3; the vertical arm 3 comprises a first side arm 8 and a second side arm 9; the first side arm 8 and the second side wall protrude forward relative to the vertical arm 3 and extend upward with respect to the heat conduction panel 2. In a preferred example, a smoke collection area is formed near the fume absorption inlets 11, 20 to absorb the oil fume more efficiently.

In the example, a kitchen appliance is disposed on the vertical arm 3, including, but not limited to, an oven 25, a steamer, a seasoning storage system, a microwave oven, or a combination thereof.

Preferably, the seasoning storage system comprises an automatic feeding system; preferably, the seasoning storage system comprises a manual seasoning box; preferably, the seasoning storage system comprises a push-type seasoning box; preferably, the seasoning storage system comprises a metering type seasoning box.

In the example, an oxygen supply channel 7 is disposed in the second side arm 9 to supply fresh air to the burner; one end of the oxygen supply channel 7 communicates with atmosphere, and the other end of the oxygen supply channel 7 communicates with the interior of the stove body. An oil receiving box is detachably disposed in the first side arm 8, passes through the first side arm 8, and extends into the vertical arm 3 to collect the oil in the vertical arm 3.

An adjusting knob 44 is disposed on the second side arm 9; a control valve 17 is disposed on the stove body 1; the adjusting knob 44 is connected to the control valve 17 through the transmission mechanism; and the control valve 17 is connected to the burner 15 through a gas transmission pipeline 16 to control a firepower in the gas stove.

The gas stove is suitable for use in any scene such as an indoor kitchen, a recreational vehicle, a yacht, and the outdoors.

The gas stove comprises other features as understood in Example 1 and hence are not described in greater detail herein.

Example 6

A sixth example of the gas stove is illustrated, and it is similar to Example 5, except for the following specific differences:

As shown in FIG. 19, a kitchen appliance is disposed under the stove body 1, including, but not limited to, an oven 25, a steamer, a seasoning storage system, a microwave oven, or a combination thereof.

The gas stove comprises other features as understood in Example 5 and hence are not described in greater detail herein.

Example 7

A seventh example of the gas stove is illustrated, and it is similar to Examples 2-5, except for the following specific differences:

In the example, the gas stove comprises a plurality of different types of range hoods as understood in Examples 2-5.

In the example, as shown in FIG. 20, at least one least one fume adsorption arm 31 is disposed on the rear side of the heat conduction panel 2, and at least one fume absorption box 313 is disposed on the left or right side of the heat conduction panel 2. The plurality of different types of range hoods is connected to the fume release channel.

The other features of the gas stove are as understood in Examples 2-5 and hence is not described in greater detail herein.

Example 8

An eighth example of the gas stove is illustrated, and it is similar to Example 1, except for the following specific differences:

As shown in FIG. 21, the hot smoke release channel 21 comprises a heat storage chamber 28; the heat conduction panel is further disposed above the heat storage chamber to transfer the heat energy in the heat storage chamber 28.

Preferably, the one or more blocking and diversion members are disposed in the heat storage chamber; and the hot smoke release channel 21 comprises one or more heat storage chambers 28.

The gas stove comprises other features as understood in Example 1 and hence are not described in greater detail herein.

Example 9

A ninth example of the gas stove is illustrated, and it is similar to Example 1, except for the following specific differences:

A stove is disposed on at least one side of the closed stove, including but not limited to, an electric stove, an open gas stove 30 and an electric hybrid stove.

As shown in FIG. 22, in the example, the open gas stove 30 is disposed on one side of the closed stove.

The gas stove comprises other features as understood in Example 1 and hence are not described in greater detail herein.

Example 10

A tenth example of the gas stove is illustrated, and it is similar to Example 1, except for the following specific differences:

In the example, the gas stove further comprises the transmission mechanism for remotely operating the control valve 17.

Preferably, as shown in FIG. 23, the transmission mechanism comprises a flexible shaft transmission mechanism; the flexible shaft transmission mechanism comprises the adjusting knob 44 and a flexible shaft connected to the adjusting knob 44; preferably, a reset spring is disposed between the adjusting knob 44 and a flexible shaft. More preferably, the flexible shaft comprises a shaft body 41 and a shaft sleeve.

The gas stove comprises other features as understood in Example 1 and hence are not described in greater detail herein.

Example 11

An eleventh example of the gas stove is illustrated, and it is similar to Example 2, except for the following specific differences:

As shown in FIG. 24, the stove body 1 comprises an upper part and a lower part; and the upper part has a greater thickness than the lower part. The closed stove and the range hood is disposed on the upper part; and the air blower is disposed in the lower part of the stove body 1.

The gas stove comprises other features as understood in Example 2 and hence are not described in greater detail herein.

Example 12

A twelfth example of the gas stove is illustrated, and it is similar to Example 2, except for the following specific differences:

As shown in FIG. 25, a kitchen appliance is disposed under the stove body 1, including, but not limited to, an oven 25, a steamer, a seasoning storage system, a microwave oven, or a combination thereof.

The gas stove comprises other features as understood in Example 2 and hence are not described in greater detail herein.

Example 13

A thirteenth example of the gas stove is illustrated, and it is similar to Example 5, except for the following specific differences:

As shown in FIG. 26, the fume absorption inlet 11 is disposed on the bottom surface of the upper part of the vertical arm 3; or the fume absorption inlet 11 is disposed on both inner surfaces of the upper part and the lower part of the vertical arm 3.

The gas stove comprises other features as understood in Example 1 and hence are not described in greater detail herein.

Example 14

A fourth example of the gas stove is illustrated in FIGS. 27-43, and it is similar to Examples 1-13, except for the following specific differences: in Examples 1-13, the gas stove comprises the range hood instead of a fresh air exchanger; and in the example, the gas stove comprises a fresh air exchanger instead of the range hood.

As shown in FIGS. 28, 29 and 33, the gas stove further comprises fresh air exchanger disposed in the stove body 1. The fresh air exchanger comprises the air blower 4, an exhaust duct 54, an oxygen supply pipe 55 and a fume discharge pipe 67; one end of the fume discharge pipe 67 is connected to the smoke outlet 19, and the other end of the fume discharge pipe 67 is connected to the exhaust duct 54; the oxygen supply pipe 55 comprises an air inlet and an air outlet; the air inlet communicates with atmosphere; the air outlet communicates with the interior of the stove body; (preferably, the oxygen supply pipe 55 is integrated with the exhaust duct 54;) when the air blower 4 operates, fresh air flows through the oxygen supply pipe 55 and is then supplied to the burner 15; and the negative pressure is formed in the smoke outlet 19, so that the hot smoke flows through the fume discharge pipe 67 and is discharged through the exhaust duct 54. Preferably, the air flow 4 circulates the air through air intake and air exhaust.

In the disclosure, the fresh air exchanger facilitates air circulation in the burner 15, thus increasing the heating efficiency of the gas stove.

In the example, the blocking and diversion member is disposed between in the gap between the burner 15 and the bottom wall of the thermal insulation and guide device 13, so as to block and divert the hot smoke; the smoke outlet 19 is disposed on the bottom wall 59 and the annular side wall 58 of the thermal insulation and guide device 13; the fume discharge passage 222 is disposed between the blocking and diversion member 14 and the inner surface of the thermal insulation and guide device 13 so as to direct the diverted hot smoke to the fume outlet 19. As the burner 15 is turned on, the hot smoke is generated from the combustion layer of the burner 15 and flows to the fume outlet 19, during which the hot smoke is blocked and diverted by the blocking and diversion member 14, and a turbulence occurs due to formation of swirls and eddies. Thus, the hot smoke maintains contact with the heat conduction panel and/or the blocking and diversion member, increasing the intensity of infrared radiation above the heat conduction panel 2, and improving the heating efficiency.

Preferably, the thermal insulation and guide device 59 further comprises a spring abutting against the heat conduction panel 2 and the top portion of the blocking and diversion ring. The heat conduction panel 2 abuts against the top portion of the blocking and diversion ring, increasing the heat transfer efficiency. Preferably, the fin-type blocking and diversion ring comprises a mounting hole for receiving a spring.

Preferably, a spring is disposed between the thermal insulation and guide device 13 and the heat conduction panel 2 so as to abut against the thermal insulation and guide device 13 and the heat conduction panel 2, thus preventing the hot smoke from escaping through a gap between the thermal insulation and guide device 13 and the heat conduction panel 2.

In the disclosure, the gas stove further comprises a control system 6 for controlling the operation of the burner 15, and opening, closing, and/or operation of the air blower 4; preferably, the control system comprises:

a command acquisition unit, controlled by a button, a knob, a touch screen, and a voice; and

a main control unit for receiving and parsing a command sent by the user and then sending a corresponding execution command to the burner 15 and the air blower 4;

preferably, the control system 6 further comprises a display unit for displaying a user command and/or a working state of the burner 15 and the air blower 4;

preferably, the control system 6 further comprises an Internet of Things module for interacting with a household equipment except for the main control unit and/or the gas stove;

preferably, the control system 6 further comprises a face recognition system and/or a fingerprint recognition system for verifying whether a user is qualified to operate the gas stove.

preferably, the control system 6 further comprises a display 5; and more preferably, the display 5 comprises a cross-screen interconnection screen and a split-screen display system.

preferably, the control system 6 further comprises a sensor for detecting whether there is a cookware on the heat conduction panel 2 and/or whether the cookware is boiled dry, and sends a detection signal to the control system. Preferably, the fin-type blocking and diversion ring 56 further comprises a mounting hole 65 for receiving the sensor.

Preferably, the control system 6 further comprises an electric valve for closing or opening the gas pipe of the burner in response to the command sent by the control system.

Preferably, the sensor comprises a temperature sensor for the temperature of the heat conduction panel 2; the control system determined whether there is a cookware on the heat conduction panel 2 and/or whether the cookware is boiled dry.

Preferably, the control system 6 further comprises an electronic ignition system, a gas control valve, and a flameout protection system.

Example 15

A fifteenth example of the gas stove is illustrated in FIGS. 36-37, and it is similar to Example 14, except for the following specific differences:

The fresh air exchanger comprises the air blower 4, the exhaust duct 54, the oxygen supply pipe 55, the fume discharge pipe 67, and the heat storage chamber 28; the air inlet of the oxygen supply pipe 55 communicates with atmosphere; the air outlet of the oxygen supply pipe 55 communicates with the interior of the stove body; and the heat storage chamber 28 comprises an air inlet communicating with the fume outlet 19 through a pipe or a channel. In the example, the heat storage chamber 28 is necessary. The fresh air exchanger comprises at least one heat storage chamber 28.

The air inlet of the heat storage chamber 28 is connected to the air blower 4 through the fume discharge pipe 67. When the air blower 4 operates, fresh air flows through the oxygen supply pipe 55 and is then supplied to the burner 15; and the negative pressure is formed in the smoke outlet 19, so that the hot smoke flows through a negative pressure pipe the fume discharge pipe 67 successively, and is then discharged through the exhaust duct 54.

The heat storage chamber 28 comprises a top panel which prevents the heat of the hot smoke from escaping and becomes hotter; and cooked food is preheated or kept warm on the top panel. Compared with the prior art, the gas stove contains multiple functions, enhances user experience, and improves energy efficiency.

Preferably, the one or more blocking and diversion members are disposed in the heat storage chamber; for example, the one or more blocking and diversion members comprise a plurality of through holes through which the flow of the hot smoke is diverted.

The gas stove comprises other features as understood in Example 14 and hence are not described in greater detail herein.

Example 16

A fifteenth example of the gas stove is illustrated in FIG. 38, and it is similar to Example 15, except for the following specific differences:

In the example, the oxygen supply pipe 55 comprises a branch pipe connected to the heat storage chamber 28; fresh air flows into the heat storage chamber 28 through the oxygen supply pipe 55; the hot smoke flows into the heat storage chamber 28, collides with the fresh air, and is discharged through the exhaust duct 54.

The gas stove comprises other features as understood in Example 15 and hence are not described in greater detail herein.

Example 17

A fifteenth example of the gas stove is illustrated in FIG. 39, and it is similar to Example 14, except for the following specific differences:

In the example, the blocking and diversion ring 29 is a belt-type blocking and diversion ring in the form of a complete ring or a notched ring; the plurality of through holes 310 is disposed on the belt-type blocking and diversion ring; the flow of the hot smoke is diverted by the belt-type blocking and diversion ring to form the turbulence; the diverted hot smoke flows through the plurality of through holes 310, the fume discharge passage and the fume outlet successively, and is then discharged into the negative pressure pipe.

The gas stove comprises other features as understood in Example 14 and hence are not described in greater detail herein.

Example 18

A fifteenth example of the gas stove is illustrated in FIG. 40, and it is similar to Example 14, except for the following specific differences:

The blocking and diversion ring comprises a folding-belt-type blocking and diversion ring; gaps 292 between every two adjacent ripples 291 of the folded belt function as the plurality of air guide channels; the hot smoke is blocked by the folded belt to form the turbulence; the plurality of air guide channels diverts the blocked hot smoke and directs it to the hot smoke release channel.

The gas stove comprises other features as understood in Example 14 and hence are not described in greater detail herein.

Example 19

A fifteenth example of the gas stove is illustrated in FIG. 41, and it is similar to Examples 14-18, except for the following specific differences:

In the example, the blocking and diversion member 14 comprises a plurality of blocking and diversion rings disposed between the burner 15 and the fume outlet 19.

In one example, the plurality of blocking and diversion rings comprises the only one of the plurality of fin-type blocking and diversion rings 56 in Example 14, the plurality of belt-type blocking and diversion rings in Example 17, or the plurality of folding-belt-type blocking and diversion rings in Example 18; the plurality of blocking and diversion rings is spaced evenly outward from the center of the burner 15.

In one example, the plurality of blocking and diversion rings comprises at least two of the plurality of fin-type blocking and diversion rings 56 in Example 14, the plurality of belt-type blocking and diversion rings in Example 17, and the plurality of folding-belt-type blocking and diversion rings in Example 18; preferably, the plurality of blocking and diversion rings is spaced evenly outward from the center of the burner 15. For example, the plurality of blocking and diversion rings comprises the plurality of fin-type blocking and diversion rings 56 in Example 14 and the plurality of belt-type blocking and diversion rings in Example 17, both of which are spaced sequentially outward from the center of the burner 15.

The gas stove comprises other features as understood in Examples 14-18 and hence are not described in greater detail herein.

Example 20

A twentieth example of the gas stove is illustrated in FIGS. 42-43, and it is similar to Examples 14-19, except for the following specific differences:

In the example, the gas stove does not comprise the fresh air exchanger; and the surface of the stove body 1 comprises a plurality of air inlets 32 through which fresh air enters the gas stove. A fume release passage 33 is disposed in the stove body 1 or the heat conduction panel 2 and is connected to the smoke outlet 19; the hot smoke is discharged through the fume release passage 33 and the smoke outlet 19. Preferably, the fume release passage 33 is disposed on the heat conduction panel 2.

The gas stove comprises other features as understood in Examples 14-19 and hence are not described in greater detail herein.

The following advantages are associated with the gas stove of the disclosure:

A combustion zone of the gas stove is located under the heat conduction panel 2, and a cookware is directly placed on the heat conduction panel 2; the infrared heat energy emitted by the burner 15 is transmitted to the heat conduction panel 2 to heat the cookware. Compared with the prior art gas stove, a cookware frame is removed so that the surface of the gas stove is easy to clean and wind-resistant. The heat conduction panel is flat and hence allows the cookware to rest on, preventing the accident from occurring. As a result, a kitchen appliance or foodstuff may be placed or cut on the surface of the heat conduction panel to improve kitchen space utilization.

The burner, the bottom wall and the annular side wall of the thermal insulation and guide device 13 is disposed under the heat conduction panel; as a result, the gas stove combustion zone is more wind-resistant and safer than the prior art.

The vertical arm 3 is disposed on the stove body 1; the fume absorption inlet is disposed on the vertical arm above the heat conduction panel; the air blower and the fume release channel 221 are disposed in the vertical arms; the fume release channel 221 connected to the fume absorption inlet 11; the fume outlet 19 is disposed on the thermal insulation and guide device 13 to allow the fume to be discharged from the combustion chamber; one end of the hot smoke release channel 21 is connected to the fume outlet 19, and the other end of the hot smoke release channel 21 is connected to the fume release channel 221; the air blower is disposed in the fume release channel 221, so that the negative pressure is formed in the fume outlet 19 in the fume absorption inlet 11 and the smoke outlet 19, and the oil fume and the hot smoke are absorbed into the fume release channel 221. The air blower operates to absorb the oil fume formed in the process of food cooking while generating an aerodynamic force and facilitating the air circulation in the burner 15, thus increasing the heating efficiency of the gas stove.

The blocking and diversion member is configured to block and divert the flow of the hot smoke; the smoke outlet 19 is disposed on the bottom wall 59 and the annular side wall 58 of the thermal insulation and guide device 13. As the burner 15 is turned on, the hot smoke is generated from the combustion layer of the burner 15 and flows to the fume outlet 19, during which the hot smoke is blocked and diverted by the blocking and diversion member 14, and a turbulence occurs due to formation of swirls and eddies. Thus, the hot smoke maintains contact with the heat conduction panel and/or the blocking and diversion member, increasing the intensity of infrared radiation above the heat conduction panel 2, and improving the heating efficiency. The thermal insulation and guide device 13 is configured to prevent heat dissipation, so that the heat energy is concentrated in the combustion chamber and spread over only an area above the heat conduction panel, thus improving safety and the heat transfer efficiency and

Further, the closed stove comprises the directional heat conduction panel which increases the heat transfer efficiency and improves safety.

It will be obvious to those skilled in the art that changes and modifications may be made, and therefore, the aim in the appended claims is to cover all such changes and modifications. 

What is claimed is:
 1. A gas stove, comprising: 1) a stove body; 2) a range hood; 3) a closed stove; and 4) an exhaust system; wherein: the closed stove is disposed in the stove body; the closed stove comprises a heat conduction panel, a burner, and a thermal insulation and guide device; the thermal insulation and guide device is disposed around the burner; the heat conduction panel is disposed on a top of the thermal insulation and guide device, and a combustion chamber is formed therebetween; a combustion layer produced by the burner is in the combustion chamber; the range hood is disposed on the stove body; the range hood comprises a fume absorption inlet for receiving oil fumes formed in the process of food cooking; the stove body comprises a fume release channel; the fume release channel communicates with the fume absorption inlet; the thermal insulation and guide device comprises a smoke outlet for discharging hot smoke in the combustion chamber; the stove body further comprises a hot smoke release channel; the hot smoke release channel communicates with the smoke outlet; and the exhaust system communicates with the fume release channel and the hot smoke release channel, so that, when the exhaust system operates, the oil fumes are absorbed into the fume absorption inlet and the hot smoke in the combustion chamber is absorbed into the smoke outlet.
 2. The gas stove of claim 1, wherein the exhaust system is disposed on the stove body; the exhaust system comprises an air blower and a mixed channel; an inlet end of the mixed channel communicates with the fume absorption inlet and the hot smoke release channel; and the air blower is connected to the mixed channel and drains out mixed gases flowing through the mixed channel.
 3. The gas stove of claim 1, wherein the range hood comprises one or more fume absorption arms; the fume absorption inlet is disposed on an upper part of the one or more fume absorption arms, and a lower part of the one or more fume absorption arms comprises an outlet end communicating with the fume release channel; the range hood further comprises one or more fume absorption boxes detachably connected to the fume release channel; the range hood further comprises one or more receiving devices corresponding to the one or more fume absorption arms; the outlet end of the fume absorption arms is flexibly or detachably connected to the receiving devices; the receiving devices are air permeable and are connected to the fume release channel; the range hood further comprises a disposable fume purification and separation device; the disposable fume purification and separation device is a one-layered or multiple-layered structure, and is detachably disposed between the outlet end of the one or more fume absorption arms and the receiving devices; and the one or more fume absorption arms comprise an arc-shaped part connected to the receiving devices, so that the one or more fume absorption arms are rotatable on the receiving devices; a magnetic part is disposed between the one or more fume absorption arms and the receiving devices to position the one or more fume absorption arms.
 4. The gas stove of claim 1, wherein the range hood comprises one or more fume absorption boxes detachably connected to the fume release channel; the fume absorption boxes comprise one or more layers of fume barriers, one or more layers of disposable fume purification and separation devices, and one or more layers of support meshes, which are stacked in turn and detachably connected to each other; the fume barriers form the fume absorption inlet, and airflows comprising the oil fume are absorbed into the fume absorption inlet, are purified and separated by the disposable fume purification and separation devices, pass through the support meshes into the fume release channel; or the range hood comprises one or more fume absorption boxes detachably connected to the fume release channel; the fume absorption boxes each comprise a belt-type fume filter; the belt-type fume filter is disposed in the fume absorption boxes and covers an air inlet chamber of the fume absorption boxes; the belt-type fume filter is movable from one end of the air inlet chamber to another manually or automatically under the drive of a driving mechanism, so that a used part of the belt-type fume filter leaves the air inlet chamber and an unused part moves synchronously to the air inlet chamber.
 5. The gas stove of claim 1, wherein the range hood comprises a vertical arm; the vertical arm extends upwards with respect to the stove body; the fume absorption inlet is disposed on the vertical arm above the stove body; the fume release channel extends from the stove body to the vertical arm, and communicates with the fume absorption inlet; the exhaust system comprises an air blower disposed on the vertical arm; the air blower is disposed in the fume release channel, so that a negative pressure is formed in the fume absorption inlet and the smoke outlet, and the oil fume and the hot smoke are absorbed into the fume release channel.
 6. The gas stove of claim 5, wherein a fume filter assembly is disposed in the fume release channel, and comprises lamellar disposable filtering material; or the fume filter assembly comprises a belt filter unit which is a rolling or folding structure; or the fume filter assembly comprises a filter plate detachably disposed in the fume release channel.
 7. The gas stove of claim 5, wherein the vertical arm is disposed on the stove body and extends upwards with respect to the heat conduction panel; the fume release channel extends from the vertical arm down to the stove body and communicates with the hot smoke release channel; an upper part of the vertical arm is protruding forward with respect to a lower part of the vertical arm; the fume absorption inlet is disposed on a vertical face the lower part of the vertical arm and/or a bottom surface of the upper part of the vertical arm; two sides of the vertical arm are provided with side arms, respectively; the side arms extend forward with respect to the vertical arm, and upward with respect to the heat conduction panel.
 8. The gas stove of claim 7, wherein one of the side arms comprises an oxygen supply channel; one end of the oxygen supply channel communicates with atmosphere, the other end communicates with the stove body to supply fresh air to the burner; another side arm comprises a detachable oil receiving box; the oil receiving box passes through the side arm and extends into the vertical arm, to collect oil stain in the vertical arm; and one of the side arms comprises an adjusting knob; the stove body comprises a control valve; the adjusting knob is connected to the control valve via a transmission mechanism; the control valve is connected to the burner through a gas transmission pipeline, to control a firepower of the burner; or, the transmission mechanism comprises a flexible shaft transmission mechanism; the flexible shaft transmission mechanism comprises an adjusting knob and a flexible shaft connected to the adjusting knob in a transmission way; a reset spring is disposed between the adjusting knob and the flexible shaft; and the flexible shaft comprises a body and a shaft sleeve.
 9. The gas stove of claim 1, wherein the hot smoke release channel comprises a heat storage chamber; the heat conduction panel is further disposed above the heat storage chamber; one or more blocking and diversion members are disposed in the heat storage chamber; and/or the heat conduction panel is configured to directionally transmit heat energy to a cooker on the heat conduction panel from inside to outside; the heat conduction panel is a directional heat conduction microcrystalline plate, or the heat conduction panel comprises a directional heat conduction material, or the heat conduction panel comprises multiple layers of directional heat conduction microcrystalline plates overlapped with each other, or the heat conduction panel comprises more than one layer of directional heat conduction microcrystalline plate and metal plates overlapped with each other.
 10. The gas stove of claim 1, wherein the closed stove further comprises a blocking and diversion member; the blocking and diversion member is disposed in the combustion chamber and around the combustion layer of the burner, to block and divert the hot smoke diffusing to the blocking and diversion member; the smoke outlet is disposed on the thermal insulation and guide device around the blocking and diversion member and; a fume discharge passage is disposed between the blocking and diversion member and the thermal insulation and guide device, to guide the hot smoke blocked and diverted by the blocking and diversion member to the smoke outlet; and the thermal insulation and guide device comprises a bottom wall and an annular side wall; the bottom wall and the annular side wall are at least one-layered; the bottom wall is disposed outside the burner and faces the heat conduction panel, so that the hot smoke produced by the burner is diffused through a gap between the heat conduction panel and the bottom wall; a top end of the annular side wall abuts against the heat conduction panel, a bottom end of the annular side wall abuts against the bottom wall; and the bottom wall is integrated with the annular side wall.
 11. The gas stove of claim 10, wherein the blocking and diversion member comprises one or more blocking and diversion rings disposed between the burner and the smoke outlet; the one or more blocking and diversion rings are disposed around the burner and comprise a plurality of air guide channels; when the hot smoke is blocked by the one or more blocking and diversion rings to form a turbulence, the turbulence is diverted by the plurality of air guide channels into the fume discharge passage; and the one or more blocking and diversion rings are thermally conductive, and a top end of the one or more blocking and diversion rings abuts against the heat conductive panel.
 12. The gas stove of claim 11, wherein the blocking and diversion ring comprises a fin-type blocking and diversion ring comprising a plurality of fins; the plurality of fins is disposed annually; gaps between every two fins form the plurality of air guide channels; when the hot smoke collides with the fins, the turbulence is formed and diverted by the plurality of air guide channels into the fume discharge passage; the fins are thermally conductive; the fin-type blocking and diversion ring further comprises one or more connection parts for connecting the plurality of fins; the connection parts are annular; the plurality of fins is connected to the connection parts; the connection parts are thermally conductive; or the blocking and diversion ring comprises a belt-type blocking and diversion ring; the belt-type blocking and diversion ring comprises a plurality of through holes; when the hot smoke collides with a body of the belt-type blocking and diversion ring, a turbulence is formed and diverted by the plurality of through holes into the fume discharge passage; or the blocking and diversion ring comprises a belt-type blocking and diversion ring; the belt-type blocking and diversion ring comprises an annular corrugated belt; gaps between ripples of the annular corrugated belt form the air guide channels; when the hot smoke collides with a body of the annular corrugated belt, a turbulence is formed and diverted by the air guide channels into the fume discharge passage.
 13. The gas stove of claim 10, wherein the bottom wall and/or the annular side wall comprise thermal insulation material; or the bottom wall and/or the annular side wall comprise at least one vacuum layer; or the bottom wall is a mixed structure comprising thermal insulation material and a vacuum layer; or the annular side wall is a mixed structure comprising thermal insulation material and a vacuum layer; or the bottom wall comprises at least two of a metal layer, a vacuum layer, and a thermal insulation material layer; or the annular side wall comprises at least two of a metal layer, a vacuum layer, and a thermal insulation material layer.
 14. The gas stove of claim 2, further comprising a control system for controlling operation of the burner, and opening, closing, and/or operation of the air blower; wherein the control system comprises: a command acquisition unit, controlled by a button, a knob, a touch screen, a voice, or a combination thereof; and a main control unit for receiving and parsing a command sent by a user and sending a corresponding execution command to the burner and the air blower; the control system further comprises a display unit for displaying a user command and/or a working state of the burner and the air blower; the control system further comprises an Internet of Things module for interacting with household equipment except for the main control unit and/or the gas stove; the control system further comprises a face recognition system and/or a fingerprint recognition system for verifying whether a user is qualified to operate the gas stove; and the control system further comprises a cross-screen interconnection screen and a split-screen display system.
 15. A gas stove, comprising: a stove body, a heat conduction panel, a burner, a bottom wall, an annular side wall, and a blocking and diversion member; wherein the heat conduction panel is disposed on the burner; the bottom wall and the annular side wall are at least one-layered; the bottom wall is disposed outside the burner and faces the heat conduction panel, so that hot smoke produced by the burner is diffused through a gap between the heat conduction panel and the bottom wall; a top end of the annular side wall abuts against the heat conduction panel, a bottom end of the annular side wall abuts against the bottom wall; the blocking and diversion member is disposed in the gap to block and divert the hot smoke diffusing to the blocking and diversion member; a smoke outlet is disposed on the bottom wall and/or the annular side wall around the blocking and diversion member; a fume discharge passage is disposed between the blocking and diversion member and the annual side wall, to guide the hot smoke blocked and diverted by the blocking and diversion member to the smoke outlet; the stove body, the heat conduction panel, the burner, the bottom wall, and the annular side wall are disposed on the stove body; and the bottom wall is integrated with the annular side wall.
 16. The gas stove of claim 15, further comprising a fresh air exchanger disposed in the stove body; wherein the fresh air exchanger comprises an air blower, an exhaust duct, an oxygen supply pipe, and a fume discharge pipe; one end of the fume discharge pipe is connected to the smoke outlet, the other end is connected to the exhaust duct; an inlet of the oxygen supply pipe is disposed outside the stove body and an outlet thereof is disposed in the stove body; the air blower is disposed between the oxygen supply pipe and the exhaust duct, to generate a pressure difference in the stove body when starting the air blower, so that fresh air is supplemented to the burner through the oxygen supply pipe, and a negative pressure is formed at the smoke outlet, and the hot smoke generated by combustion is transported to the exhaust duct via the fume discharge pipe; or the fresh air exchanger comprises an air blower, an exhaust duct, an oxygen supply pipe, a fume discharge pipe, and a heat storage chamber; the heat conduction panel is further disposed above the heat storage chamber; an inlet of the oxygen supply pipe is disposed outside the stove body and an outlet thereof is disposed in the stove body; an air intake of the heat storage chamber is connected to the smoke outlet via a pipe or passage; an air outlet of the heat storage chamber is connected to the air blower through the fume discharge pipe, to generate a pressure difference in the stove body when starting the air blower, so that fresh air is supplemented to the burner through the oxygen supply pipe, and on the other hand, a negative pressure is formed at the smoke outlet, and the hot smoke generated by combustion is transported to the exhaust duct via the heat storage chamber.
 17. The gas stove of claim 15, wherein the blocking and diversion member comprises one or more blocking and diversion rings disposed between the burner and the smoke outlet; and the one or more blocking and diversion rings are disposed around the burner and comprise a plurality of air guide channels; when the hot smoke is blocked by the one or more blocking and diversion rings to form a turbulence, the turbulence is diverted by the plurality of air guide channels into the fume discharge passage.
 18. The gas stove of claim 17, wherein the blocking and diversion ring comprises a fin-type blocking and diversion ring comprising a plurality of fins; the plurality of fins is disposed annually; gaps between every two fins form the plurality of air guide channels; when the hot smoke collides with the fins, the turbulence is formed and diverted by the plurality of air guide channels into the fume discharge passage; the fins are thermally conductive; or the blocking and diversion ring comprises a belt-type blocking and diversion ring; the belt-type blocking and diversion ring comprises a plurality of through holes; when the hot smoke collides with a body of the belt-type blocking and diversion ring, a turbulence is formed and diverted by the plurality of through holes into the fume discharge passage; or the blocking and diversion ring comprises a belt-type blocking and diversion ring; the belt-type blocking and diversion ring comprises an annular corrugated belt; gaps between ripples of the annular corrugated belt form the air guide channels; when the hot smoke collides with a body of the annular corrugated belt, a turbulence is formed and diverted by the air guide channels into the fume discharge passage.
 19. The gas stove of claim 15, wherein the bottom wall and/or the annular side wall comprise thermal insulation material; or the bottom wall and/or the annular side wall comprise at least one vacuum layer; or the bottom wall is a mixed structure comprising thermal insulation material and a vacuum layer; or the annular side wall is a mixed structure comprising thermal insulation material and a vacuum layer; or the bottom wall comprises at least two of a metal layer, a vacuum layer, and a thermal insulation material layer; or the annular side wall comprises at least two of a metal layer, a vacuum layer, and a thermal insulation material layer.
 20. The gas stove of claim 16, further comprising a control system for controlling operation of the burner, and opening, closing, and/or operation of the air blower; wherein the control system comprises: a command acquisition unit, controlled by a button, a knob, a touch screen, a voice, or a combination thereof; and a main control unit for receiving and parsing a command sent by a user and sending a corresponding execution command to the burner and the air blower; the control system further comprises a display unit for displaying a user command and/or a working state of the burner and the air blower; the control system further comprises an Internet of Things module for interacting with household equipment except for the main control unit and/or the gas stove; the control system further comprises a face recognition system and/or a fingerprint recognition system for verifying whether a user is qualified to operate the gas stove; and the control system further comprises a cross-screen interconnection screen and a split-screen display system. 